54 CHANNELS AND GLENS OF AYRSHIRE. 



Paduff Burn. — The Paduff cuts through a considerable quantity 

 of rock, and, below the falls where it leaves the hill traps and cuts 

 through stratified beds of the lower limestone series, there is a 

 bank of boulder-clay on its left side. Below this it runs mostly 

 on rock till it comes to the Kilbirnie-Largs Road ; above this road 

 it has cut a considerable glen through rock, and here there may 

 be an old glen, but on this point I am not perfectly certain. 



Rye Water. — The Rye Water between Whitecraig and Cun- 

 ningham Baidland, and for a considerable distance further down, 

 runs in a post-glacial rock-cutting, in agglomeratic tuff, limestone, 

 shale, and sandstone, the romantic Hindog Glen, with fort-capt 

 Aitnock Craig, facing the famous limestone quarry of Cunningham 

 Baidland, being about the centre of it. A great peculiarity of 

 the geological features here is the fact that the Whitecraig Rock 

 (it is not white, white being a mistranslation of the Gaelic word for 

 a warrior, who may have had a fort here) rises towards the present 

 glen, and looks as if its landward slope formed part of the side of 

 the old glen (See Figure 2), as it cannot be placed on the Cun- 

 ningham Baidland side, that side being evidently all rock. 



On the left side of the Rye, above Whitecraig, a great 70-feet 

 bank of drift is seen, which at the present time is constantly 

 slipping, as the base of it is being cut away by the river. The old 

 drift-choked glen appears to extend from this point to about the 

 position of the targets, opposite Ryefield. In the neighbourhood 

 of Doggartland, the Rye again cuts through rock to a small depth. 



Caaf Water. — The Caaf above Birkhead Glen shows deep 

 drift, but it is difficult to say whether or not there is an old buried 

 glen here. Below Drumcastle Mill the Caaf cuts through sand- 

 stone of millstone grit age, and further down a considerable scaur 

 of drift appears on the right bank, as if to indicate that the old 

 channel or glen lay to the east of Drumcastle. The old channel 

 may cross the present one here and continue somewhere in the 



